Why can’t people go to the casino playing roulette and bet on black, and if they lose, double what they lost and bet on black again until they win?

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If you bet $100, your odds of winning are around 50% and if you lose, bet $200, and so on and so forth until you win, and then cash out with a guaranteed profit. Assuming odds of black are 47.37% as per American roulette, your odds of not winning a single one after 6 tries are 0.02125 (I think) and decrease exponentially after each subsequent try.

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Anonymous 0 Comments

As others have mentioned, there are caps on how much you can bet, which limits this strategy. There are three “even money” bets. Black or red are the most well known. There are 36 numbers, so you can also bet “odd or even”, and the third even-money bet is high or low. Meaning a number between 1-16 or 17-36.

European wheels have one green number, called “0”, and American wheels have an additional green number “00”. If you see there have been five of the same numbers in a row (5 reds, 5 odds, 5 lows), then you can bet the opposite (lets say $100) and also bet $10 on the green as “insurance”. The 0 and 00 are not red or black, high or low, odd or even.

Casinos have crunched all the strategy odds, and it’s like Holyfield saying he has a plan to fight Mike Tyson. Then Tyson replied “Everyone has a plan…until they get punched in the face”

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